System and method for traffic control

Abstract

A system and a method for controlling traffic, the method comprising: when a sensing terminal sends a wireless signal, the intensity of the wireless signal sent by the sensing terminal is determined by wireless sensor nodes (101) located on both sides of a road, and the determined intensity is passed to an information processing module (102); the information processing module (102); the information processing module (102) controls the state of a traffic light according to the change in the intensity determined by the wireless sensor nodes (101). By means of the present application, the state of pedestrians crossing the road can be automatically determined, and the traffic light can be automatically adjusted, so as to ensure the safety of pedestrians effectively.

Description

[0001]This application claims the benefit of Chinese Patent Application No. 201010571045.6, filed with the Chinese Patent Office on Dec. 2, 2010 and entitled “System and method for traffic control”, which is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION [0002]The present invention relates to an automatic control technology and particularly to a system and method for traffic control.BACKGROUND OF THE INVENTION[0003]Pedestrian passing time is typically set at a fixed value in a traffic control system for a pedestrian crossing in the prior art.[0004]The passing time for a slower pedestrian, e.g., an elderly man or woman, a person with a poor self-control ability (e.g., a younger child), etc., may exceed the preset fixed time. However the existing traffic signal lamp control system can not judge whether there is a pedestrian passing by, thus possibly in such a phenomenon that a pedestrian may be trapped at the middle of a road and fail to pass smoothly when tra...

AI Technical Summary

Benefits of technology

The invention involves using wireless sensors to notify an information processing module of the strength of a sensor terminal. This allows the module to control the status of traffic signal lamps to determine the passage status of a pedestrian and ensure their safety.

Problems solved by technology

However the existing traffic signal lamp control system can not judge whether there is a pedestrian passing by, thus possibly in such a phenomenon that a pedestrian may be trapped at the middle of a road and fail to pass smoothly when traffic signal lamps change in color during passage of the pedestrian through a crossing.

Furthermore a child may judge a change in traffic signal lamp inaccurately and pass slowly, so numerous hidden dangers may result from the solution with a fixed value at a crosswalk on a road nearby elementary and middle schools.

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